You could use sort of a distributed lock service to achieve this (ZooKeeper can help). But such things ought to be avoided as David pointed out above.
On Sun, Dec 19, 2010 at 9:09 PM, Martin Becker <_martinbec...@web.de> wrote: > Hello everybody, > > is there a possibility to make sure that certain/all reduce tasks, > i.e. the reducers to certain keys, are executed in a specified order? > This is Job internal, so the Job Scheduler is probably the wrong place to > start? > Does the order induced by the Comparable interface influence the > execution order at all? > > Thanks in advance, > Martin > -- Harsh J www.harshj.com